OMAP3: Zoom2: Add TWL4030 support

Add TWL4030 CORE and TWL4030 drivers to Zoom2 board file
TWL drivers enabled are:
	bci
	madc
	usb
	keypad
	mmc

Signed-off-by: Vikram Pandita <vikram.pandita@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>